in the custom CSS setting to execute arbitrary JavaScript in user browsers.", "datePublished": "2026-03-13T01:18:13Z", "dateModified": "2026-05-24T01:37:44Z", "keywords": "CVE-2026-22209, vulnerability, CVE, security, wpDiscuz, gVectors", "about": { "@type": "SoftwareApplication", "name": "wpDiscuz", "applicationCategory": "SecurityApplication", "operatingSystem": "All" } }
CVE-2026-22209 MEDIUM

CVE-2026-22209: wpDiscuz before 7.6.47 - Cross-Site Scripting via Unescaped Custom CSS in Style Tag

Vendor Gvectors
Product wpDiscuz
Weakness CWE-79 · XSS
Published March 13, 2026
Last update May 24, 2026

CVSS base score

5.1/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

What the vulnerability does

01Description

wpDiscuz before 7.6.47 contains a cross-site scripting vulnerability in the customCss field that allows administrators to inject malicious scripts by breaking out of style tags. Attackers with admin access can inject payloads like </style><script>alert(1)</script> in the custom CSS setting to execute arbitrary JavaScript in user browsers.

Key dates

02Disclosure timeline

March 13, 2026 CVE published
May 24, 2026 Record updated

Related vulnerabilities

04Related CVE